package top.iridescent.exception.model;

import top.iridescent.model.Result;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 异常处理器
 */
//@Component
public class RRExceptionHandler implements HandlerExceptionResolver {
    private Logger logger = LoggerFactory.getLogger(getClass());

    @Override
    public ModelAndView resolveException(HttpServletRequest request,
                                         HttpServletResponse response, Object handler, Exception ex) {
        Result r = new Result();
        try {
            response.setContentType("application/json;charset=utf-8");
            response.setCharacterEncoding("utf-8");

            if (ex instanceof RRException) {
                r.setCode(((RRException) ex).getCode());
                r.setMsg(((RRException) ex).getMessage());
            } else {
                r = Result.error();
            }

            //记录异常日志
            logger.error(ex.getMessage(), ex);
            response.getWriter().print(r);
        } catch (Exception e) {
            logger.error("RRExceptionHandler 异常处理失败", e);
        }
        return new ModelAndView();
    }
}
